mirror of https://github.com/rust-lang/rust
25 lines
1.2 KiB
Plaintext
25 lines
1.2 KiB
Plaintext
error[E0382]: borrow of moved value: `message`
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--> $DIR/liveness-use-after-send.rs:16:20
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LL | fn test00_start(ch: Chan<Box<isize>>, message: Box<isize>, _count: Box<isize>) {
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| ------- move occurs because `message` has type `Box<isize>`, which does not implement the `Copy` trait
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LL | send(ch, message);
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| ------- value moved here
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LL | println!("{}", message);
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| ^^^^^^^ value borrowed here after move
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note: consider changing this parameter type in function `send` to borrow instead if owning the value isn't necessary
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--> $DIR/liveness-use-after-send.rs:3:54
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LL | fn send<T:Send + std::fmt::Debug>(ch: Chan<T>, data: T) {
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| ---- in this function ^ this parameter takes ownership of the value
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= note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
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help: consider cloning the value if the performance cost is acceptable
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LL | send(ch, message.clone());
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| ++++++++
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error: aborting due to 1 previous error
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For more information about this error, try `rustc --explain E0382`.
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